ITCT-A is a component-based, assessment-driven, multi-modal treatment for traumatized adolescents (aged 12 to 21 years) and their families. The ITCT model is based on developmentally appropriate, culturally adapted approaches that can be applied in multiple settings (outpatient clinic, school, hospital, inpatient, residential) and involves collaboration with multiple community agencies. ITCT-A addresses challenges specifically associated with complex trauma and includes separate treatment manuals addressing substance use as well as “acting out” or self-injurious behaviors.